CLAUDE BERNARD'S THEORY OF NARCOSIS

Abstract
The Over-ton-Meyer theory is accepted as applying to permeability, but not in any proper sense to narcosis. Bernard''s theory of reversible coagulation of the colloids of sensory nerves was verified by photomicrographic studies of live yeast cells treated with 2% amyl alcohol; coagulation and flocculation occurred in 25 min.; the time varied with temp. and concentration of narcotic and culture. Centrifuged treated cultures were revived in fresh media (Laurent''s). Non protein-coagulating gases (N2O) give rise to acid metabolic products which cause flocculation. Bernard''s theory offers a clue to a scientific method of countering habit-forming drugs.

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